These high-quality, very detailed election data sets, compiled from official sources, are available for purchase. The files include state, county, and town-level FIPS codes. See the link in each section for content details.

Atlas Data in the Press, in Publications, and in Education

Many universities, organizations, and individuals use these data in a variety of publications, including books, newspapers, magazines, web content, database applications, and more.
Organizations sourcing these data include The New York Times, The Economist, The Weekly Standard, The Columbus Dispatch, NBC News, FOX News, Scientific American, CBS News, Harvard University, Columbia University, Cornell University, American University, Brandeis University, George Mason University, Massachusetts Institute of Technology, University of Notre Dame, Princeton University, Rutgers University, Stanford University, Tufts University, UC San Diego, UC Berkley, University of Essex, University of Pennsylvania, University of Toronto, University of Virginia, Yale University, University of Ottawa.

License TypesIndividual - data sets are granted for use by a single individual.
Site - grants an individual license to all official members of an organization primarily located in one geographic location, such as an office building or campus.
Redistribution - to republish data for access by third parties - requires contract - please contact Dave

* Data prior to 2000 is preliminary due to lack of complete official data by county in PA. File sets include data compiled from a database of precinct data, but results have discrepancies relative to official totals. Work continues to contact each county individually for official results.

Special Thanks to Karl Klarner (visiting scholar at Harvard University) for helping to collect the official source data for the 1992-1998 congressional elections.